name: RustFS Pool Expansion / Decommission Test

on:
  workflow_dispatch:
    inputs:
      rustfs_version:
        description: 'RustFS release tag to test (e.g. 1.0.0-rc.3)'
        required: false
        default: '1.0.0-rc.3'
      package_url:
        description: 'Direct .deb URL (nightly/R2/dev). Overrides rustfs_version.'
        required: false
        type: string
      pools:
        description: 'Number of pools to expand to (2 = first rebalance only)'
        type: choice
        options:
          - '2'
          - '3'
        default: '3'
      storage_threshold:
        description: 'Stop writing when storage usage reaches N%'
        required: false
        default: '50'
      warp_duration:
        description: 'warp write duration (e.g. 5m, 10m)'
        required: false
        default: '10m'
      run_decommission:
        description: 'Run the pool decommission step (3-pool topology only)'
        type: boolean
        default: true
      cleanup_before:
        description: 'Reset the nodes before the test (DESTROYS existing data/config)'
        type: boolean
        default: true
      cleanup_after:
        description: 'Reset the nodes after the test (DESTROYS test data/config)'
        type: boolean
        default: true
  schedule:
    # Nightly regression run; remove if you do not want a schedule.
    - cron: '0 21 * * *'

permissions:
  contents: read

# Only one pool-expansion test at a time: the workflow mutates a shared
# test environment, so concurrent runs must not clobber each other.
concurrency:
  group: rustfs-pool-expansion-test
  cancel-in-progress: false

defaults:
  run:
    shell: bash

env:
  RUSTFS_ACCESS_KEY: ${{ secrets.RUSTFS_ACCESS_KEY }}
  RUSTFS_SECRET_KEY: ${{ secrets.RUSTFS_SECRET_KEY }}
  RUSTFS_API_ENDPOINT: ${{ secrets.RUSTFS_API_ENDPOINT || vars.RUSTFS_API_ENDPOINT || vars.RUSTFS_RC_ENDPOINT }}
  RUSTFS_NODES: ${{ secrets.RUSTFS_NODES || vars.RUSTFS_NODES }}
  RUSTFS_SSH_USER: ${{ secrets.RUSTFS_SSH_USER || vars.RUSTFS_SSH_USER }}
  # Package used by the scheduled run (workflow_dispatch inputs are empty for
  # schedule events), i.e. the latest nightly deb published by nightly-gnu.yml.
  RUSTFS_NIGHTLY_PACKAGE_URL: ${{ vars.RUSTFS_NIGHTLY_PACKAGE_URL || 'https://dl.rustfs.com/artifacts/rustfs/packages/nightly/rustfs-nightly-latest.deb' }}

jobs:
  pool-expansion-test:
    runs-on: smoke-testing
    timeout-minutes: 360
    steps:
      - name: Checkout
        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7
        with:
          persist-credentials: false

      - name: Show environment
        run: |
          uname -a
          jq --version
          openssl version
          warp --version || true
          df -h /data | tail -1

      - name: Reset test environment (before)
        if: ${{ inputs.cleanup_before != 'false' }}
        run: |
          chmod +x scripts/test/rustfs_pool_expand.sh
          ./scripts/test/rustfs_pool_expand.sh --reset -y

      - name: Preflight checks
        run: |
          ARGS=(--preflight --endpoint "${{ env.RUSTFS_API_ENDPOINT }}")
          if [ -n "${{ inputs.package_url }}" ]; then
            ARGS+=(--package-url "${{ inputs.package_url }}")
          elif [ -n "${{ inputs.rustfs_version }}" ]; then
            ARGS+=(--version "${{ inputs.rustfs_version }}")
          else
            ARGS+=(--package-url "${{ env.RUSTFS_NIGHTLY_PACKAGE_URL }}")
          fi
          ./scripts/test/rustfs_pool_expand.sh "${ARGS[@]}"

      - name: Run pool expansion & decommission test
        id: pool_test
        run: |
          set -o pipefail
          STEPS="1,2,3,4,5,6"
          if [ "${{ inputs.pools || '3' }}" = "3" ]; then
            STEPS="$STEPS,7,8"
            if [ "${{ inputs.run_decommission != 'false' }}" = "true" ]; then
              STEPS="$STEPS,9"
            fi
          fi
          ARGS=(--steps "$STEPS" --with-warp -y \
            --endpoint "${{ env.RUSTFS_API_ENDPOINT }}" \
            --storage-threshold "${{ inputs.storage_threshold || '50' }}" \
            --warp-duration "${{ inputs.warp_duration || '10m' }}" \
            --log-file /tmp/rustfs-pool-test.log)
          if [ -n "${{ inputs.package_url }}" ]; then
            ARGS+=(--package-url "${{ inputs.package_url }}")
          elif [ -n "${{ inputs.rustfs_version }}" ]; then
            ARGS+=(--version "${{ inputs.rustfs_version }}")
          else
            ARGS+=(--package-url "${{ env.RUSTFS_NIGHTLY_PACKAGE_URL }}")
          fi
          ./scripts/test/rustfs_pool_expand.sh "${ARGS[@]}"

      - name: Upload test logs
        if: always()
        uses: actions/upload-artifact@b7c566a772e6b6bfb58ed0dc250532a479d7789f # v6
        with:
          name: rustfs-pool-test-${{ github.run_id }}
          path: |
            /tmp/rustfs-pool-test.log
            /tmp/rustfs-warp.log
          if-no-files-found: warn

      - name: Reset test environment (after)
        if: ${{ always() && inputs.cleanup_after != 'false' }}
        run: |
          ./scripts/test/rustfs_pool_expand.sh --reset -y

      - name: Notify on failure
        if: failure()
        run: |
          echo "RustFS pool expansion test failed"
          echo "Package source: ${{ inputs.package_url || inputs.rustfs_version || 'nightly (R2 latest)' }}"
          echo "See the uploaded log artifact for details."